Synthesis and Characterization of Some Four Coordinated Zinc(II) and Mercury(II) Complexes

Abstract

Several new symmetrical bidentate Schiff base ligands (L¹= N,N-bis(4-chlorobenzylidene)ethane- 1,2-diamine, L²= N,N-bis(3-nitrobenzylidene)ethane-1,2-diamine and L³= N,N-bis(4- nitrobenzylidene)ethane-1,2-diamine and their zinc(II) and mercury(II) complexes with general formula MLX₂ in which X= Cl^-, Br^- and I^- and M=Hg(II) and Zn(II) have been prepared and characterized by elemental analysis, ¹H NMR, ¹³C NMR, Fourier transform-infrared and ultraviolet- visible spectra and molar conductance. All compounds are non-electrolytes in dimethylformamide. The molar conductance and spectral properties indicate coordination of halides ions to metal in pseudo-tetrahedral geometry.